Look on the 'Fermentation' tab when you're on the designer aspect of the brew. Right under the 'Crab Level' item is the pressure to set it to at the temperature you've indicated you'll be keeping it at.

You can also use the carbonation chart found at www.kegerators.com/carbonation-table.php Print that out and put it near your kegorator for easy reference. I have a copy taped to the side of my brew fridge.